Question in description pls explain it to me

Question

def first function(c,d):
return c+d
def second_function(a, b):
return first_function (a, b)
def third_function(a, b):
result = second_function (5, 10)
print(result)

third_function(3,4)

Answer 1

add proper Identation to code,..
hoping you don't have errors in your original code, and

Third_function calling second_function with passed patameters. second_function just calling first_function with same parameters. first_function return sum of parameters to second_function same result is passed back to third_function..
Making it extend code instead of reduce just.
You can get same with just one function
first_function(3, 4)

Hope it helps...